As a fighter nicknamed “Just Bones” by his early training partners, it seems fitting that Allan Nascimento is dropping down to flyweight for tonight’s Legacy FC 19 title fight.

The slender Nascimento (7-0), who got the nickname (“Puro Osso” in Portuguese) that his current Chute Boxe teammates quickly adopted, challenges UFC and WEC vet Will Campuzano (11-4) for his 125-pound championship.

The bout, which airs live on AXS TV (10 p.m. ET), takes place at Allen Event Center in Allen, Texas.

For Nascimento, an undefeated veteran of the Brazilian fight scene, it’s his second fight on U.S. soil. While many of his fellow Brazilian have moved stateside as their MMA careers blossomed, Nascimento said he’s perfectly content where he is.

“It has never occurred to me to move away from Sao Paulo, much less Brazil,” he told MMAjunkie.com (www.mmajunkie.com). “All that I have is here. My friends are here too: ‘Sertanejo’ (Felipe Arantes) and ‘Mineiro’ (Lucas Martins), who are in the UFC, and also (fellow Legacy fighter) Thomas Almeida. We have a very strong team here. As far my professional life, I have everything I need here. There’s no reason to look elsewhere. I’d rather stay with my team than to seek out something new.”

The longtime muay Thai and jiu-jitsu specialist submitted Terry Acker (4-0 at the time) at Legacy FC 12 this past year. Against Campuzano, Nascimento faces his most accomplished and experienced opponent to date. Additionally, with Campuzano currently ranked No. 14 in the USA TODAY Sports/MMAjunkie.com MMA flyweight rankings, Nascimento could quickly put himself on the map in his new division.

Nascimento, who’s submitted six opponents and knocked out the other, plans to stick with the Texas-based Legacy promotion. His goal is to dethrone Campuzano, log a successful title defense, and then see where it takes him. That would leave one fight remaining on his current contract, though he said it’s unlikely Legacy would hold him to it if a bigger opportunity arrives.

“That’s not how they are,” he said. “If I get an offer from the UFC or Bellator, we’ll just sit down and chat with Legacy to find the best solution. My current contract is not exclusive.”

An unblemished record is always attractive to potential suitors, and if he remains at flyweight, the UFC would be an obvious target. But Nascimento knows the O will go at some point.

“I don’t feel any pressure, to tell the truth,” he said. “I know I’ll lose one day. I merely focus on my training. If I lose one day, that’s fine. I’ll just correct my mistakes so I can win the next fight. I’m OK with the fact that I’ll lose eventually. No one wins forever.”

He just doesn’t expect it to happen tonight.

“From what I could gather, he’s got great standup,” Nascimento said of Campuzano. “I plan to impose my muay Thai game at first, though most of my fights eventually hit the ground. I might take him down if I feel it necessary. I think he’s got great muay Thai with very fast hands.

“But I’m with the best MMA team in the world, which is Chute Boxe. Everything I know about muay Thai and MMA I learned here. And our fighting instinct is always the same: to finish the fight at the first opportunity, not to leave it to the judges.”

The Latest

A total of 26 fighters got their chance to shine on Saturday as part of UFC 190 at Rio de Janeiro’s HSBC Arena. Now that UFC 190 is in the books, it’s time to commence MMAjunkie’s “Three Stars” ceremony.

The man known for cranking submissions to the point of injury added eye-gouging to his repertoire. But is the controversy of Rousimar Palhares too essential to his bizarre, awful appeal for his employers to take any meaningful action against him?

Ronda Rousey’s statistical greatness has already ventured into uncharted territory – just six fights into her UFC career. Check out all the post-fight facts, including Rousey’s latest achievements, about UFC 190.